/*
 *  Workspace window manager
 *  Copyright (c) 2015-2021 Sergii Stoian
 *
 *  Window Maker window manager
 *  Copyright (c) 1997-2003 Alfredo K. Kojima
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef __WORKSPACE_WM_SCREEN__
#define __WORKSPACE_WM_SCREEN__

#include "WM.h"
#include <sys/types.h>

#include <CoreFoundation/CFArray.h>
#include <CoreFoundation/CFRunLoop.h>

#include <core/drawing.h>
#include <core/wbagtree.h>
#include <core/wfont.h>

typedef struct {
  WMRect *screens;
  int count;        /* screen count, 0 = inactive */
  int primary_head; /* main working screen */
  int event_base;
  int error_base;
} WXrandrInfo;

/* an area of the screen reserved by some window */
typedef struct WReservedArea {
  WArea area;
  Window window;
  struct WReservedArea *next;
} WReservedArea;

typedef struct WAppIconChain {
  struct WAppIcon *aicon;
  struct WAppIconChain *next;
} WAppIconChain;

/* Drawers, which are docks, really */
typedef struct WDrawerChain {
  struct WDock *adrawer;
  struct WDrawerChain *next;
} WDrawerChain;

/*
 * each WScreen is saved into a context associated with it's root window
 */
typedef struct _WScreen {
  int screen;         /* screen number */
  Window info_window; /* for our window manager info stuff */
#ifdef USE_ICCCM_WMREPLACE
  Atom sn_atom; /* window manager selection */
#endif

  int width; /* size of the screen */
  int height;

  Window root_win;   /* root window of screen */
  int depth;         /* depth of the default visual */
  Colormap colormap; /* root colormap */
  int root_colormap_install_count;
  struct WWindow *original_cmap_window; /* colormap before installing
                                         * root colormap temporarily */
  struct WWindow *cmap_window;
  Colormap current_colormap;

  Window w_win; /* window to use as drawable
                 * for new GCs, pixmaps etc. */
  Visual *w_visual;
  int w_depth;
  Colormap w_colormap; /* our colormap */

  WXrandrInfo xrandr_info;

  Window no_focus_win; /* window to get focus when nobody
                        * else can do it */

  struct WWindow *focused_window;     /* window that has the focus
                                       * Use this list if you want to
                                       * traverse the entire window list
                                       */
  struct WWindow *bfs_focused_window; /* window that had focus before
                                       * another window entered fullscreen
                                       */

  CFMutableArrayRef selected_windows;

  CFMutableArrayRef fakeGroupLeaders; /* list of fake window group ids */

  struct WAppIcon *app_icon_list; /* list of all app-icons on screen */

  struct WApplication *wapp_list; /* list of all aplications */

  WMBag *stacking_list; /* bag of lists of windows
                         * in stacking order.
                         * Indexed by window level
                         * and each list on the array
                         * is ordered from the topmost to
                         * the lowest window
                         */

  int window_count; /* number of windows in window_list */

  struct WDesktop **desktops; /* workspace array */
  int desktop_count;          /* number of workspaces */
  int current_desktop;        /* current workspace number */
  int last_desktop;           /* last used workspace number */

  WReservedArea *reservedAreas; /* used to build totalUsableArea */

  WArea *usableArea;      /* area of the workspace where
                           * we can put windows on, as defined
                           * by other clients (not us) */
  WArea *totalUsableArea; /* same as above, but including
                           * the dock and other stuff */

  WMColor *black;
  WMColor *white;
  WMColor *gray;
  WMColor *darkGray;

  /* shortcuts for the pixels of the above colors. just for convenience */
  WMPixel black_pixel;
  WMPixel white_pixel;
  WMPixel light_pixel;
  WMPixel dark_pixel;

  Pixmap stipple_bitmap;
  Pixmap transp_stipple;   /* for making holes in icon masks for
                            * transparent icon simulation */
  WMFont *title_font;      /* default font for the titlebars */
  WMFont *menu_title_font; /* font for menu titlebars */
  WMFont *menu_item_font;  /* font for menu items */
  WMFont *icon_title_font; /* for icon titles */
  WMFont *clip_title_font; /* for clip titles */
  WMFont *info_text_font;  /* text on things like geometry
                            * hint boxes */

  XFontStruct *tech_draw_font; /* font for tech draw style geom view
                                  needs to be a core font so we can
                                  use it with a XORing GC */

  WMFont *workspace_name_font;

  WMColor *select_color;
  WMColor *select_text_color;
  /* foreground colors */
  WMColor *window_title_color[3]; /* window titlebar text (foc, unfoc, pfoc)*/
  WMColor *menu_title_color[3];   /* menu titlebar text */
  WMColor *clip_title_color[2];   /* clip title text */
  WMColor *mtext_color;           /* menu item text */
  WMColor *dtext_color;           /* disabled menu item text */

  int frame_border_width;
  WMColor *frame_border_color;
  WMColor *frame_focused_border_color;
  WMColor *frame_selected_border_color;

  WMPixel line_pixel;
  WMPixel frame_border_pixel;          /* frame border */
  WMPixel frame_focused_border_pixel;  /* frame border */
  WMPixel frame_selected_border_pixel; /* frame border */

  union WTexture *menu_title_texture[3];   /* menu titlebar texture (tex, -, -) */
  union WTexture *window_title_texture[3]; /* win textures (foc, unfoc, pfoc) */
  union WTexture *resizebar_texture[3];    /* window resizebar texture (tex, -, -) */

  union WTexture *menu_item_texture; /* menu item texture */

  struct WTexSolid *menu_item_auxtexture; /* additional texture to draw menu
                                           * cascade arrows */
  struct WTexSolid *icon_title_texture;   /* icon titles */

  struct WTexSolid *widget_texture;

  struct WTexSolid *icon_back_texture; /* icon back color for shadowing */

  WMColor *icon_title_color; /* icon title color */

  GC icon_select_gc;

  GC frame_gc;   /* gc for resize/move frame (root) */
  GC line_gc;    /* gc for drawing XORed lines (root) */
  GC copy_gc;    /* gc for XCopyArea() */
  GC stipple_gc; /* gc for stippled filling */
  GC draw_gc;    /* gc for drawing misc things */
  GC mono_gc;    /* gc for 1 bit drawables */

  struct WPixmap *b_pixmaps[PRED_BPIXMAPS]; /* internal pixmaps for buttons*/
  struct WPixmap *menu_radio_indicator;     /* left menu indicator */
  struct WPixmap *menu_check_indicator;     /* left menu indicator for checkmark */
  struct WPixmap *menu_mini_indicator;      /* for miniwindow */
  struct WPixmap *menu_hide_indicator;      /* for hidden window */
  struct WPixmap *menu_shade_indicator;     /* for shaded window */
  int app_menu_x, app_menu_y;               /* position for application menus */

  struct WMenu *switch_menu;       /* window list menu */
  struct WMenu *workspace_menu;    /* workspace operation */
  struct WMenu *window_menu;       /* window command menu */
  struct WMenu *icon_menu;         /* icon/appicon menu */
  struct WMenu *workspace_submenu; /* workspace list for window_menu */

  struct WDock *dock;          /* the application dock */
  struct WMenu *dock_pos_menu; /* Dock position menu */
  struct WPixmap *dock_dots;   /* 3 dots for the Dock */
  Window dock_shadow;          /* shadow for dock buttons */
  struct WAppIcon *clip_icon;  /* The clip main icon, or the dock's, if they are merged */
  struct WMenu *clip_menu;     /* Menu for clips */
  struct WMenu *clip_submenu;  /* Workspace list for clips */
  struct WMenu *clip_options;  /* Options for Clip */
  struct WMenu *clip_ws_menu;  /* workspace menu for clip */
  struct WMenu *drawer_menu;   /* Menu for drawers */
  struct WDock *last_dock;
  WAppIconChain *global_icons; /* for omnipresent icons chain in clip */
  int global_icon_count;       /* How many global icons do we have */
  WDrawerChain *drawers;       /* Chain of drawers */
  /* Cache the following two informations, as they are used quite a lot */
  int drawer_count;                /* Nb of drawers that */
  struct WDock *attracting_drawer; /* The drawer that auto-attracts icons, or NULL */

  struct RContext *rcontext; /* wrlib context */

  WMScreen *wmscreen; /* for widget library */

  struct RImage *icon_tile;
  struct RImage *miniwindow_tile;
  struct RImage *clip_tile;   /* tile with arrows to change workspace */
  struct RImage *drawer_tile; /* tile for a drawer (tile + arrow) */
  Pixmap icon_tile_pixmap;    /* For app supplied icons */

  /* Launching appicons: created in launching state before app start */
  CFMutableArrayRef launching_icons;

  struct RImage *def_icon_rimage; /* Default RImage icon */

  struct WMGeometryView *gview; /* size/position view */

  /* state and other informations */
  short cascade_index; /* for cascade window placement */

  CFMutableDictionaryRef session_state;

  /* for double-click detection */
  Time last_click_time;
  Window last_click_window;
  int last_click_button;

  /* balloon help data */
  struct _WBalloon *balloon;

  /* workspace name data */
  Window workspace_name;
  /* WMHandlerID *workspace_name_timer; */
  CFRunLoopTimerRef workspace_name_timer;
  struct WorkspaceNameData *workspace_name_data;

  /* for raise-delay */
  /* WMHandlerID *autoRaiseTimer; */
  CFRunLoopTimerRef autoRaiseTimer;
  Window autoRaiseWindow; /* window that is scheduled to be
                           * raised */

  /* for window shortcuts */
  CFMutableArrayRef shortcutWindows[MAX_WINDOW_SHORTCUTS];

  /* for notifications posting */
  CFNotificationCenterRef notificationCenter;

#ifdef USE_DOCK_XDND
  char *xdestring;
#endif

  struct NetData *netdata;

  struct {
    unsigned int startup : 1; /* during window manager startup */
    unsigned int regenerate_icon_textures : 1;
    unsigned int dnd_data_convertion_status : 1;
    unsigned int root_menu_changed_shortcuts : 1;
    unsigned int added_workspace_menu : 1;
    unsigned int added_windows_menu : 1;
    unsigned int startup2 : 1; /* startup phase 2 */
    unsigned int next_click_is_not_double : 1;
    unsigned int backimage_helper_launched : 1;
    /* some client has issued a WM_COLORMAP_NOTIFY */
    unsigned int colormap_stuff_blocked : 1;
    unsigned int doing_alt_tab : 1;
    unsigned int jump_back_pending : 1;
    unsigned int ignore_focus_events : 1;
    unsigned int icon_yard_mapped : 1;
    unsigned int modifier_pressed : 1;
  } flags;
} WScreen;

WScreen *wScreenInit(int screen_number);
void wScreenSaveState(WScreen *scr);
void wScreenRestoreState(WScreen *scr);

int wScreenBringInside(WScreen *scr, int *x, int *y, int width, int height);
int wScreenKeepInside(WScreen *scr, int *x, int *y, int width, int height);

WScreen *wDefaultScreen(void);
void wScreenFinish(WScreen *scr);
void wScreenUpdateUsableArea(WScreen *scr);

#endif /* __WORKSPACE_WM_SCREEN__ */
